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1, same golf, different feeling.

2. Old sports and new experiences.

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4. Enjoy golf anytime, anywhere.

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7, extraordinary lens, free space

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9. Civilian golf. Swing more freely

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1 1, around golf, new fun in sports

12, easy to choose sports anytime, anywhere.

13, the first choice for gifts, fashion sports.

Introduction to golf:

"Golf" is a transliteration of GOLF, which consists of four acronyms in English. They are: green, oxygen, light and friendship. It means "green, oxygen, sunshine, friendship", and it is a sport that integrates natural fun, physical exercise and games. Golf is a ball game in which a ball is hit into a hole with a stick. Nowadays, modern golf has become synonymous with aristocratic sports, which evolved from an ancient game called "Blowing Bowls" in China.

Many dents are deliberately made on the surface of golf balls.

The shape of golf ball is one of the achievements of aerodynamic research. This is related to the turbulent transition and separated flow around the sphere.

When a smooth sphere flows around, the transition of turbulence occurs late, and the regular flow corresponding to turbulence is called laminar flow. The laminar boundary layer is prone to flow separation (that is, the streamline leaves the surface of the ball), and the front surface of the ball forms a high pressure area, while the back surface forms a large low pressure area, resulting in great resistance (piezoresistance). Let the golf ball fly a short distance

However, when there are dents on the surface of the sphere, the dents promote turbulent transition, and the turbulent boundary layer is not easy to produce flow separation, thus reducing the low pressure area behind the sphere and reducing the resistance. Thereby increasing the flying distance of the golf ball.

The frictional resistance of turbulence is greater than that of laminar flow, but compared with the shape resistance, the effect is smaller and the total resistance is still smaller.

Small protrusions on the surface of golf ball can also promote separation, but the interference of protrusions on the flow is somewhat difficult to control, resulting in some lateral forces (also called lift).

Regular flow around a sphere has no lift. Rotation will produce lift. Appropriate lift-drag ratio will increase the flight distance. Different rotation directions will produce a "banana ball" effect.

In addition, the rules of golf stipulates that golf balls must not be designed, manufactured or intentionally changed to have different characteristics from spherical symmetric balls.